I'm new to the quarter-bore family of traditional cartridges. Assuming a standard 25 rimfire rifle barrel with an excellent bore. what other cartridges could it be rechambered for---assuming the block was reworked for center fire.

Slug your barrel first. Some of the rimfire bore dia's run a bit smaller than with the centerfires. If your reamer has a removeable pilot, no big deal, but if it's a solid pilot reamer, you may need to have the pilot ground down slightly.

There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves.Proud Noodlehead

I have a Stevens Model 47 on a 44 action with a 25 cal Stevens barrel with a 17" twist. It is chambered for 25-20 SS. It shoots 87 grain bullets very well, even the pointed ones. I have not yet slugged it.

As an alternative to converting the rifle, you could check out the June '10 edition of the SSE to see how to make ersatz .25 Stevens RF cartridges. My Stevens Marksman shoots quite well with a 65 gn. cast bullet using brass formed to make a shell primed by empty .22 brass, and I have an unaltered rifle.

As an alternative to converting the rifle, you could check out the June '10 edition of the SSE to see how to make ersatz .25 Stevens RF cartridges. My Stevens Marksman shoots quite well with a 65 gn. cast bullet using brass formed to make a shell primed by empty .22 brass, and I have an unaltered rifle.

Guess I'm gonna have to find that issue! I've got a couple singles in .25 Stevens RF and I'd sure love to shoot them more!

DWS, One thing to consider is what action you're considering in the conversion. There are a few guns that are chambered in .25RF that should never be chambered in any CF .25 caliber.

I wonder if anyone has considered converting 25 Stevens rimfire to 25ACP (similar to converting 32 rimfire Long to 32 S&W). The ACP is a semi-rimmed case and compared to the 25 r.f., the case diameter is identical and the bore diameter is identical. The ACP is, of course shorter and rim diameter is smaller and the rim is, I think, thinner.

Not a bad idea if the bore of the rifle is .251 it should work with reloads, but have you ever tried to reload the 25acp? I did years ago, not much fun and those tiny cases will crescent your finger tips if you do not pay attention.Mike

I wonder if anyone has considered converting 25 Stevens rimfire to 25ACP (similar to converting 32 rimfire Long to 32 S&W). The ACP is a semi-rimmed case and compared to the 25 r.f., the case diameter is identical and the bore diameter is identical. The ACP is, of course shorter and rim diameter is smaller and the rim is, I think, thinner.

Until I get my hands on the barrel and Etc in another month I have no ides what the twist exact dimensions etc are. I have been told the barrel is threaded for a #2 roller and I'm also getting that action so It'll go back on that action in all probability. I've gotten inordinately fond of those little #2s